Where does “þīefþu” come from?

þīefþu (Old English) comes from Proto-Germanic þiubiþō, from Proto-Germanic -iþō, from Proto-Indo-European -iteh₂ — -th.

Ancestry of “þīefþu”, step by step

StepLanguageWordMeaning
1Proto-GermanicþiubiþōThe state or condition of a thief; thiefdom;...
2Proto-Germanic-iþō-ness, -th
3Proto-Indo-European-iteh₂-th

Words derived from “þīefþu”

Every word from Proto-Indo-European -iteh₂ →Every word from Proto-Germanic -iþō →Every word from Proto-Germanic þiubiþō →